A shot peening metal coating equipment for aluminum alloy surface

Abstract

The present invention provides a metal coating device for shot peening the surface of aluminum alloy, which belongs to the field of surface treatment. In particular, it relates to equipment for surface treatment of aluminum alloy plates. It includes: an import component, which is used for importing aluminum alloy plates and is provided with a surface cleaning structure; a surface pretreatment component located at the rear end of the import component, which is used for pretreatment of the surface of the aluminum alloy to produce a porous structure on the surface of the aluminum alloy plate; a shot peening bin is placed at the rear end of the surface pretreatment component, which is used for sand blasting the surface of the aluminum alloy plate to fill the pores; a cleaning export component for cleaning the aluminum alloy plate is provided at the rear end of the shot peening bin; the surface of the aluminum alloy plate is chemically treated first to generate a porous oxide film structure on its surface, and then the metal powder is sandblasted onto the aluminum alloy surface filled with metal powder by using sand blasting shots as a transport carrier, and the metal powder is filled into the porous oxide film to form an adhesion.

Description

Technical Field

[0001] The invention provides a shot peening metal coating device for aluminum alloy surface, belonging to the field of surface treatment, and particularly relates to a device for performing surface treatment on aluminum alloy plates to improve their wear resistance and corrosion resistance. Background Art

[0002] At present, aluminum alloys are used in various industries, such as the automotive industry and the construction industry. In the construction industry, aluminum alloys are often used for exterior wall decorative panels due to their light weight and beautiful appearance. However, the exterior walls currently mainly use the original color of aluminum alloys, and there is a dark gray oxide layer on the surface. The overall form is single and the application scenarios are limited. At present, the surface treatment of aluminum alloy materials mainly uses chemical treatments such as electroplating, or physical treatments such as shot peening to apply compressive stress. However, the electroplating method has poor film bonding, is easy to fall off, has a short service life, and does not have good wear resistance. The shot peening process is only a physical change and does not form a color adjustment in appearance.

[0003] Publication No. CN112522696B discloses a device for shot peening a metal coating on the surface of an automobile wheel hub, and proposes a surface treatment for an aluminum alloy wheel hub, which is mainly performed by a shot peening unit. The shot peening unit includes a shot peening cabin, a shot peening mechanism arranged on the shot peening cabin, and a clamping mechanism arranged in the shot peening cabin. The shot peening cabin is provided with a wheel hub inlet and a wheel hub outlet, and a shot peening chamber is internally structured. It essentially releases surface stress and does not have the technical effect of optimizing wear resistance.

[0004] Publication No. CN219092906U discloses a surface treatment device for thin-walled aluminum alloy parts, including an assembly box, a workpiece placement rack is fixedly installed on the left side of the upper end of the assembly box, a conveyor belt is arranged on the right side of the upper end of the assembly box, a feeding assembly is arranged on the left side of the lower end of the workpiece placement rack, a cleaning rack is fixedly installed on the upper end of the conveyor belt, and discharge baffles are fixedly connected to the front and rear sides of the upper end of the assembly box. It is essentially a cleaning device that only cleans the surface and cannot achieve modification treatment.

[0005] Publication No. CN112126961A discloses a micro-arc oxidation surface treatment method for aluminum alloy workpieces, including micro-arc oxidation, water washing treatment, sealing treatment, and drying treatment. The method forms a corresponding protective coating on the surface through an electrochemical process. The electrochemical process is complex and is not suitable for continuous production operations of plates. Summary of the invention

[0006] The invention discloses a metal coating device for shot peening of aluminum alloy surface, and provides a surface treatment device for forming a porous structure on the aluminum alloy surface and then filling metal powder into the porous structure by shot peening. The device has a simple structure and is easy to use.

[0007] An aluminum alloy surface shot peening metal coating equipment, comprising:

[0008] An introduction component, which is used for introducing the aluminum alloy plate and is provided with a surface cleaning structure;

[0009] A surface pretreatment component located at the rear end of the inlet component, the surface pretreatment component is used for pretreatment of the aluminum alloy surface to produce a porous structure on the surface of the aluminum alloy plate;

[0010] The shot blasting chamber is placed at the rear end of the surface pretreatment assembly and is used to blast the surface of the aluminum alloy plate to fill the pores;

[0011] A cleaning outlet assembly for cleaning the aluminum alloy plate is provided at the rear end of the shot blasting chamber;

[0012] The introduction component, the surface pretreatment component, and the shot peening bin are connected by connecting pipes, and the connection positions are sealed. The surface pretreatment component is located at the lower side of the introduction component and the cleaning export component to form a low position on the transmission route of the aluminum alloy plate;

[0013] The surface pretreatment component is provided with a plurality of independent chambers, which are a chemical polishing chamber, a water washing chamber, a pickling chamber, a water washing chamber, and a pickling chamber. A heating component is provided at the outlet of the surface pretreatment component.

[0014] Preferably, the multiple independent cavities of the surface pretreatment component are respectively connected to the external solution tank, the bottom of the surface pretreatment component is connected to the waste liquid recovery system, the shot blasting bin is correspondingly equipped with multiple groups of centrifugal fans for spraying sandblasting pills, and the bottom of the shot blasting bin is provided with a recovery box for recovering sandblasting pills;

[0015] The surface of the sandblasting shot is provided with a plurality of groups of accommodating grooves to accommodate metal powder. The sandblasting shot is physically mixed and placed in the metal powder before entering the shot blasting chamber to ensure that the metal powder is attached to the surface of the sandblasting shot;

[0016] Furthermore, the metal powder is used to fill the porous structure on the aluminum alloy plate.

[0017] Preferably, the introduction component includes an introduction box for protection support, the end of the introduction box is connected to the surface pretreatment component through a connecting pipe, a slope is arranged on the top surface of the introduction box, and multiple groups of cleaning components are arranged equidistantly on the slope, a supporting roller I is arranged transversely at the end of the introduction box, a limiting claw is arranged at the mouth of the introduction box, and the limiting claw extends into the introduction box, and multiple groups of conductive parts are arranged at the root of the slope of the introduction box;

[0018] The conductive member is a spring sleeve placed on the introduction box, and a plurality of groups of windows for installing the conductive member are arranged on the introduction box to form a rotary installation of the conductive member.

[0019] Preferably, the surface pretreatment assembly comprises a treatment box, an inner sleeve placed in the treatment box, a plurality of liquid storage tanks are arranged on the top of the treatment box and are connected to the treatment box, an upper sealing door is sealed and covered on the liquid storage tank, a partition for separating the liquid storage tank is arranged in the treatment box, and a sealing strip is arranged at the lower edge of the partition to seal against the surface of the aluminum alloy plate;

[0020] A heating component is also provided in the processing box, and the heating component is located between the inner sleeve and the processing box. The heating component is symmetrically arranged up and down and is located at the rear end of the liquid storage box. An inner liquid storage pipe connected with the inner sleeve is provided in the liquid storage box. The inner liquid storage pipe and the inner sleeve are integrally formed. The mouth of the inner liquid storage pipe is correspondingly placed between the liquid storage box and the upper sealing door. The upper sealing door is provided with a liquid inlet hole.

[0021] Wherein, a buffer plate I and a buffer plate II are arranged in the inner liquid storage pipe, and the buffer plate I and the buffer plate II are stacked up and down. A plurality of groups of conduits I are arranged on the buffer plate I, and the conduits I extend upward, so that when the liquid level reaches a corresponding height, the liquid overflows downward through the conduits I to form uniform material drop. The buffer plate II is also provided with a plurality of groups of conduits II, and the diameter of the conduits II is smaller than that of the conduits I. The conduits II are evenly distributed on the buffer plate II and do not overlap with the conduits I.

[0022] Among them, two sets of guide plates are arranged on the inner side wall of the inner casing, and the guide plates are arranged obliquely, corresponding to the recovery groove arranged at the bottom of the inner casing, so as to guide out the waste liquid;

[0023] Among them, liquid replenishment pipes are arranged on both sides of the liquid storage tank for adding new solution and adjusting the solution concentration. The liquid storage tank corresponds to an independent circulation recovery system. The system at least includes a pump body, a filter, an evaporator, a condenser, and a concentration detection sensor. The liquid storage tank is provided with at least 5, which are used in sequence for chemical polishing of the surface of the aluminum alloy plate, water washing and cleaning liquid polishing, pickling to form an oxide film, water washing to remove acid, secondary pickling to strengthen the oxide film, and then heating and drying through the heating component.

[0024] Preferably, the shot blasting chamber comprises a sandblasting box, an electrostatic plate placed in the sandblasting box, a supporting roller II is arranged on the inlet end of the sandblasting box, mounting seats are arranged on the electrostatic plate, centrifugal fans in three directions are installed on the mounting seats for sandblasting, and a recovery box is arranged at the bottom of the sandblasting box;

[0025] The electrostatic plate is suspended above the recovery box, and the electrode ear is placed between the electrostatic plate and the recovery box to extend out of the side wall of the sandblasting box;

[0026] The electrostatic plate is energized to form an electrostatic field under the aluminum alloy plate, which forms an electric field force for the metal powder attached to the surface of the sandblasting shot to adhere to the aluminum alloy plate. After the metal powder is attached, the sandblasting shot is recycled through the recycling box to form a cycle.

[0027] The sandblasting box is connected to the cleaning export assembly, and the cleaning export assembly includes a discharge box, and a cleaning pipe is arranged in the discharge box;

[0028] Among them, there are multiple groups of cleaning pipes, which can be rotatably arranged, and multiple injection ports are arranged on one side of the cleaning pipes. The cleaning pipes are used to clean the sandblasting pills attached to the surface of the aluminum alloy plate;

[0029] Among them, at least one group of cleaning pipes is air-blowing for removing sandblasting pellets, and one group is water-washing for cleaning residual acid liquid.

[0030] Preferably, the cleaning component is a plasma shower head.

[0031] Preferably, the sandblasting shot comprises an outer coating layer and an inner metal core disposed inside the outer coating layer, the outer coating layer is made of rubber material, and a plurality of accommodating grooves are evenly distributed on the surface of the outer coating layer;

[0032] Preferably, in the liquid storage tank, the first pickling is oxalic acid, the second pickling is sulfuric acid, and the oxalic acid concentration is 15±3g / L, and the sulfuric acid concentration is 80±10g / L;

[0033] Among them, the pickling temperature is controlled at 25℃-30℃;

[0034] Among them, the aluminum alloy plate is the anode, the conduit II on the buffer plate I is the cathode, and the voltage is 16V-18V.

[0035] The present invention discloses an aluminum alloy surface shot peening metal coating equipment, which first performs chemical treatment on the surface of the aluminum alloy plate to generate a porous oxide film structure on the surface, and then uses sandblasting shots as a transport carrier to sandblast the aluminum alloy surface filled with metal powder, and the metal powder is filled into the porous oxide film to form adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The present invention is a three-dimensional structural diagram of an aluminum alloy surface shot peening metal coating equipment.

[0037] Figure 2 It is a cross-sectional schematic diagram of a shot peening metal coating equipment for aluminum alloy surface according to the present invention.

[0038] Figure 3 The present invention is a bottom view of an aluminum alloy surface shot peening metal coating equipment.

[0039] Figure 4 It is a three-dimensional structural diagram of the introduction component of the present invention.

[0040] Figure 5 It is a cross-sectional schematic diagram of the introduction component of the present invention.

[0041] Figure 6 It is a side view of the introduction component of the present invention.

[0042] Figure 7 It is a three-dimensional structural diagram of the introduction box of the present invention.

[0043] Figure 8 It is a three-dimensional structural diagram of the conductive member of the present invention.

[0044] Fig. 9 It is a three-dimensional structural diagram of the surface pretreatment component of the present invention.

[0045] Fig.10 It is a schematic diagram of the interior of the surface pretreatment component of the present invention.

[0046] Fig.11 It is a cross-sectional schematic diagram of the surface pretreatment component of the present invention.

[0047] Fig.12 It is a three-dimensional structural diagram of the inner sleeve of the present invention.

[0048] Fig.13 The structure of the buffer plate of the present invention is schematically shown.

[0049] Fig.14 It is a three-dimensional structural diagram of the shot blasting bin of the present invention.

[0050] Fig.15 It is a top view of the shot blasting bin of the present invention.

[0051] Fig.16 It is a schematic diagram of the internal structure of the shot blasting chamber of the present invention.

[0052] Fig.17 It is a three-dimensional structural diagram of the cleaning tube of the present invention.

[0053] Fig.18 The three-dimensional structure of the sandblasting shot of the present invention.

[0054] Fig.19 It is a schematic cross-sectional view of the sandblasting shot of the present invention.

[0055] In the attached figure:

[0056] 1. Import components;

[0057] 10. Induction box; 11. Conducting part; 12. Cleaning component; 13. Support roller I; 14. Limiting claw;

[0058] 2. Surface pretreatment components;

[0059] 20. Processing box; 21. Inner casing; 22. Upper sealing door; 23. Liquid storage box; 24. Heating assembly; 25. Liquid replenishing tube; 26. Recovery tank; 27. Buffer plate I; 28. Buffer plate II; 29. ​​Inner liquid storage tube;

[0060] 3. Clean the export components;

[0061] 30. Discharge box; 31. Cleaning pipe;

[0062] 4. Shot peening chamber;

[0063] 40. Sandblasting box; 41. Mounting seat; 42. Electrode ear; 43. Recovery box; 44. Electrostatic plate;

[0064] 5. Connecting pipe;

[0065] 6. Sandblasting shot;

[0066] 60. Receiving groove; 61. Outer coating layer; 62. Inner metal core. DETAILED DESCRIPTION

[0067] The present invention is further described below in conjunction with the accompanying drawings.

[0068] An aluminum alloy surface shot peening metal coating equipment, comprising:

[0069] An introduction component 1, which is used for introducing aluminum alloy plates and is provided with a surface cleaning structure;

[0070] A surface pretreatment component 2 located at the rear end of the introduction component 1, the surface pretreatment component 2 is used for pretreatment of the surface of the aluminum alloy to produce a porous structure on the surface of the aluminum alloy plate;

[0071] The shot blasting chamber 4 is placed at the rear end of the surface pretreatment component 2, and the shot blasting chamber 4 is used to blast the surface of the aluminum alloy plate to fill the pores;

[0072] A cleaning outlet assembly 3 for cleaning the aluminum alloy plate is provided at the rear end of the shot blasting chamber 4;

[0073] The introduction component 1, the surface pretreatment component 2, and the shot peening bin 4 are connected by connecting pipes 5, and the connection positions are sealed. The surface pretreatment component 2 is located at the lower side of the introduction component 1 and the cleaning export component 3 to form a low position on the transmission route of the aluminum alloy plate;

[0074] The surface pretreatment component 2 is provided with a plurality of independent chambers, which are a chemical polishing chamber, a water washing chamber, a pickling chamber, a water washing chamber, and a pickling chamber. A heating component 24 is provided at the outlet of the surface pretreatment component 2.

[0075] In an optional embodiment, the multiple independent cavities of the surface pretreatment component 2 are respectively connected to the external solution tank, the bottom of the surface pretreatment component 2 is connected to the waste liquid recovery system, the shot blasting bin 4 is correspondingly equipped with multiple groups of centrifugal fans for spraying sandblasting pills 6, and the bottom of the shot blasting bin 4 is provided with a recovery box 43 for recovering the sandblasting pills 6;

[0076] The surface of the sandblasting shot 6 is provided with a plurality of accommodating grooves 60 for accommodating metal powder. The sandblasting shot 6 is physically mixed and placed in the metal powder before entering the shot blasting chamber 4 to ensure that the metal powder is attached to the surface of the sandblasting shot 6.

[0077] Among them, by selecting different metal powders, particles of different colors can be embedded in the surface of the aluminum alloy plate, thereby changing the color of the aluminum alloy plate. The process appearance is diverse, overcoming the problem of the existing single appearance, and through the adhesion of metal particles, a strengthening layer is formed on the surface, which increases the wear resistance of the surface.

[0078] Furthermore, the metal powder is used to fill the porous structure on the aluminum alloy plate.

[0079] It should be noted that the aluminum alloy plate forms a continuous transmission through the import component 1, the connecting pipe 5, the surface pretreatment component 2, the connecting pipe 5, the shot peening bin 4, and the cleaning export component 3, and a plurality of supporting rollers are correspondingly arranged inside for support. When the aluminum alloy plate enters, the surface is degreased and cleaned through the structure on the import component 1, and then the surface is treated through the surface treatment component 2 to form a porous oxide film. Due to the characteristics of the aluminum alloy, the oxide film formed is porous, which can be used for the subsequent filling and attachment of the shot peening material in the shot peening bin 4 to form a corresponding alloy layer on the surface of the aluminum alloy plate.

[0080] In an optional embodiment, the introduction component 1 includes an introduction box 10 for protection support, the end of the introduction box 10 is connected to the surface pretreatment component 2 through a connecting pipe 5, a slope is arranged on the top surface of the introduction box 10, and multiple groups of cleaning components 12 are arranged equidistantly on the slope, and a supporting roller I13 is arranged transversely at the end of the introduction box 10, and a limiting claw 14 is arranged at the mouth of the introduction box 10, and the limiting claw 14 extends into the introduction box 10, and multiple groups of conductive parts 11 are arranged at the root of the slope of the introduction box 10;

[0081] The conductive member 11 is a spring sleeve placed on the introduction box 10 , and the introduction box 10 is provided with a plurality of groups of windows for installing the conductive member 11 , so as to form a swivel installation of the conductive member 11 .

[0082] It should be noted that the conductive part 11 can form a guide support for the metal plate, and the spring structure is convenient for installation and replacement, thereby improving replacement efficiency. The cleaning component 12 can be a combination of one or more plasma nozzles, water washing nozzles, and air blowing nozzles to ensure the cleanliness of the surface of the aluminum alloy plate.

[0083] In an optional embodiment, the surface pretreatment assembly 2 includes a treatment box 20, an inner sleeve 21 placed in the treatment box 20, a plurality of liquid storage tanks 23 are arranged on the top of the treatment box 20 and are connected to the treatment box 20, an upper sealing door 22 is sealed and covered on the liquid storage tank 23, a partition for separating the liquid storage tank 23 is arranged in the treatment box 20, and a sealing strip is arranged at the lower edge of the partition to seal against the surface of the aluminum alloy plate;

[0084] A heating assembly 24 is also provided in the processing box 20. The heating assembly 24 is located between the inner sleeve 21 and the processing box 20. The heating assembly 24 is symmetrically arranged up and down and is located at the rear end of the liquid storage box 23. An inner liquid storage pipe 29 connected to the inner sleeve 21 is provided in the liquid storage box 23. The inner liquid storage pipe 29 and the inner sleeve 21 are integrally formed. The mouth of the inner liquid storage pipe 29 is correspondingly placed between the liquid storage box 23 and the upper sealing door 22. The upper sealing door 22 is provided with a liquid inlet hole.

[0085] Among them, a buffer plate I27 and a buffer plate II28 are arranged in the inner liquid storage tube 29, and the buffer plates I27 and II28 are stacked up and down. The buffer plate I27 is provided with multiple groups of conduits I, and the conduits I extend upward, so that when the liquid level reaches the corresponding height, it overflows and flows downward through the conduits I to form uniform material falling. The buffer plate II28 is also provided with multiple groups of conduits II, and the diameter of the conduits II is smaller than that of the conduits I. The conduits II are evenly distributed on the buffer plate II28 and do not overlap with the conduits I.

[0086] The inner wall of the inner sleeve 21 is provided with two sets of guide plates, which are arranged obliquely and correspond to the recovery groove 26 arranged at the bottom of the inner sleeve 21 to guide the waste liquid out;

[0087] Among them, liquid replenishing pipes 25 are arranged on both sides of the liquid storage tank 23 for adding new solution and adjusting the solution concentration. The liquid storage tank 23 corresponds to an independent circulation recovery system, and the system at least includes a pump body, a filter, an evaporator, a condenser, and a concentration detection sensor. The liquid storage tank 23 is provided with at least 5, which are used in sequence for chemical polishing, water washing and cleaning, pickling to form an oxide film, water washing and deacidification, secondary pickling to strengthen the oxide film on the surface of the aluminum alloy plate, and then heating and drying through the heating component 24.

[0088] It should be noted that the refilling tube 25 is connected to the liquid storage tank 23. When it is detected that the concentration in the liquid storage tank 23 drops, the original solution is replenished through the refilling tube 25 to adjust the concentration so that the concentration of the solution required for surface treatment is within the designed range.

[0089] In an optional embodiment, the shot blasting bin 4 includes a sandblasting box 40, an electrostatic plate 44 placed in the sandblasting box 40, a supporting roller II is provided at the inlet end of the sandblasting box 40, a mounting seat 41 is provided on the electrostatic plate 44, a centrifugal fan in three directions is installed on the mounting seat 41 for sandblasting, and a recovery box 43 is provided at the bottom of the sandblasting box 40;

[0090] The electrostatic plate 44 is suspended above the recovery box 43, and the electrode ear 42 is placed between the electrostatic plate 44 and the recovery box 43, extending out of the side wall of the sandblasting box 40;

[0091] The electrostatic plate 44 is energized to form an electrostatic field under the aluminum alloy plate, which forms an electric field force on the metal powder attached to the surface of the sandblasting shot 6 to adhere to the aluminum alloy plate. After the metal powder is attached, the sandblasting shot 6 is recycled through the recycling box 43 to form a cycle.

[0092] The sandblasting box 40 is connected to the cleaning outlet assembly 3, and the cleaning outlet assembly 3 includes a discharge box 30, and a cleaning pipe 31 is arranged in the discharge box 30;

[0093] Among them, the cleaning pipe 31 is provided with multiple groups and can be rotatably arranged, and multiple injection ports are arranged on one side of the cleaning pipe 31. The cleaning pipe 31 is used to clean the sandblasting pills 6 attached to the surface of the aluminum alloy plate;

[0094] Among them, the cleaning pipes 31 have at least one group for air blowing to remove the sandblasting pills 6 and one group for water washing to clean the residual acid solution.

[0095] It should be noted that the cleaning angle is adjusted by rotating the cleaning tube 31 to clean the aluminum alloy surface. Similarly, the cleaning tube 31 can be driven by external power to form repeated deflections. When cleaning the residual acid solution, it can be neutralized by an alkaline solution and then washed with water.

[0096] In an optional embodiment, the cleaning component 12 is a plasma shower head.

[0097] In an optional embodiment, the sandblasting shot 6 includes an outer coating layer 61 and an inner metal core 62 disposed inside the outer coating layer 61. The outer coating layer 61 is made of rubber, and a plurality of receiving grooves 60 are evenly distributed on the surface of the outer coating layer 61.

[0098] It should be noted that the rubber material can protect the surface of the aluminum alloy plate during sandblasting, and the receiving groove 60 is used for transporting metal powder;

[0099] Further, the diameter of the sandblasting shot 6 is 5mm-3mm, or a single size of sandblasting shot 6 is selected;

[0100] Furthermore, in the present application, the sandblasting shot 6 can be eliminated, and powder spraying can be directly used to spray metal powder onto the surface of the aluminum alloy, and then shot blasting is performed to extrude the surface of the aluminum alloy and extrude the mouth of the porous structure to seal the holes.

[0101] In an optional embodiment, in the liquid storage tank 23, the first pickling is oxalic acid, the second pickling is sulfuric acid, and the oxalic acid concentration is 15±3 g / L, and the sulfuric acid concentration is 80±10 g / L;

[0102] Among them, the pickling temperature is controlled at 25℃-30℃;

[0103] Among them, the aluminum alloy plate is the anode, the conduit II on the buffer plate I27 is the cathode, and the voltage is 16V-18V.

[0104] It should be noted that secondary pickling can increase the thickness of the surface oxide film, that is, increase the depth of the pores, and achieve the purpose of surface treatment of the aluminum alloy plate by combining shot peening and electrostatic treatment.

[0105] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A shot peening metal coating equipment for aluminum alloy surface, characterized in that: include: An introduction component (1), the introduction component (1) is used for introducing aluminum alloy plates and is provided with a surface cleaning structure; A surface pretreatment component (2) located at the rear end of the introduction component (1), the surface pretreatment component (2) is used for pretreatment of the surface of the aluminum alloy to produce a porous structure on the surface of the aluminum alloy plate; The shot blasting chamber (4) is placed at the rear end of the surface pretreatment component (2), and the shot blasting chamber (4) is used to blast the surface of the aluminum alloy plate to fill the pores; A cleaning outlet assembly (3) for cleaning the aluminum alloy plate is provided at the rear end of the shot blasting chamber (4); The introduction component (1), the surface pretreatment component (2), and the shot peening chamber (4) are connected by connecting pipes (5) respectively, and the connection positions are sealed. The surface pretreatment component (2) is located below the introduction component (1) and the cleaning export component (3) to form a low position on the transmission route of the aluminum alloy plate. The surface pretreatment component (2) is provided with a plurality of independent chambers, which are a chemical polishing chamber, a water washing chamber, a pickling chamber, a water washing chamber, and a pickling chamber. A heating component (24) is provided at the outlet of the surface pretreatment component (2); The plurality of independent cavities of the surface pretreatment component (2) are respectively connected to an external solution tank, the bottom of the surface pretreatment component (2) is connected to a waste liquid recovery system, a plurality of groups of centrifugal fans for spraying sandblasting pellets (6) are correspondingly installed on the shot blasting bin (4), and a recovery box (43) for recovering the sandblasting pellets (6) is provided at the bottom of the shot blasting bin (4); The surface of the sandblasting shot (6) is provided with a plurality of groups of accommodating grooves (60) for accommodating metal powder. Before entering the shot blasting chamber (4), the sandblasting shot (6) is physically mixed and placed in the metal powder to ensure that the metal powder is attached to the surface of the sandblasting shot (6); Further, the metal powder is used to fill the porous structure on the aluminum alloy sheet; The introduction component (1) comprises an introduction box (10) for protection support, the end of the introduction box (10) is connected to the surface pretreatment component (2) through a connecting pipe (5), a slope is arranged on the top surface of the introduction box (10), and a plurality of cleaning components (12) are arranged on the slope at equal intervals, a supporting roller I (13) is arranged transversely at the end of the introduction box (10), a limiting claw (14) is arranged at the mouth of the introduction box (10), and the limiting claw (14) extends into the introduction box (10), and a plurality of conductive members (11) are arranged at the root of the slope of the introduction box (10); The conductive member (11) is a spring sleeve placed on the introduction box (10), and the introduction box (10) is provided with a plurality of groups of windows for installing the conductive member (11), so as to form a rotatable installation of the conductive member (11); The surface pretreatment assembly (2) comprises a treatment box (20), an inner sleeve (21) disposed in the treatment box (20), a plurality of liquid storage tanks (23) disposed on the top of the treatment box (20) and connected to the treatment box (20), an upper sealing door (22) sealingly covering and disposed on the liquid storage tank (23), a partition plate for separating the liquid storage tank (23) disposed in the treatment box (20), a sealing strip disposed at the lower edge of the partition plate for sealingly contacting the surface of the aluminum alloy plate; A heating component (24) is also provided in the processing box (20), and the heating component (24) is located between the inner sleeve (21) and the processing box (20). The heating component (24) is symmetrically arranged up and down and is located at the rear end of the liquid storage box (23). An inner liquid storage pipe (29) connected to the inner sleeve (21) is provided in the liquid storage box (23). The inner liquid storage pipe (29) and the inner sleeve (21) are integrally formed. The mouth of the inner liquid storage pipe (29) is correspondingly arranged between the liquid storage box (23) and the upper sealing door (22), and the upper sealing door (22) is provided with a liquid inlet hole. Wherein, a buffer plate I (27) and a buffer plate II (28) are arranged in the inner liquid storage tube (29), and the buffer plate I (27) and the buffer plate II (28) are stacked up and down. The buffer plate I (27) is provided with a plurality of groups of conduits I, and the conduits I extend upward, so that when the liquid level reaches a corresponding height, the liquid overflows downward through the conduits I to form a uniform material drop. The buffer plate II (28) is also provided with a plurality of groups of conduits II, and the diameter of the conduits II is smaller than that of the conduits I. The conduits II are evenly distributed on the buffer plate II (28) and do not overlap with the conduits I. The inner wall of the inner sleeve (21) is provided with two groups of guide plates, which are arranged obliquely and correspond to the recovery groove (26) arranged at the bottom of the inner sleeve (21) to guide the waste liquid out; Wherein, liquid replenishing pipes (25) are arranged on both sides of the liquid storage tank (23) for adding new solution and adjusting the concentration of the solution. The liquid storage tank (23) corresponds to an independent circulation recovery system, and the system at least includes a pump body, a filter, an evaporator, a condenser, and a concentration detection sensor. The liquid storage tank (23) is provided with at least five of them, which are used in sequence for chemical polishing, water washing and cleaning, pickling to form an oxide film, water washing to remove acid, and secondary pickling to strengthen the oxide film on the surface of the aluminum alloy plate, and then heating and drying through the heating component (24).

2. The aluminum alloy surface shot peening metal coating equipment according to claim 1, characterized in that: The shot blasting chamber (4) comprises a sandblasting box (40), an electrostatic plate (44) disposed in the sandblasting box (40), a supporting roller II being disposed at the inlet end of the sandblasting box (40), a mounting seat (41) being disposed on the electrostatic plate (44), a centrifugal fan in three directions being mounted on the mounting seat (41) for sandblasting, and a recovery box (43) being disposed at the bottom of the sandblasting box (40); The electrostatic plate (44) is suspended above the recovery box (43), and the electrode ear (42) is placed between the electrostatic plate (44) and the recovery box (43) to extend out of the side wall of the sandblasting box (40); The electrostatic plate (44) is energized to form an electrostatic field below the aluminum alloy plate, which causes the metal powder attached to the surface of the sandblasting shot (6) to adhere to the aluminum alloy plate. After the metal powder is attached, the sandblasting shot (6) is recycled through the recycling box (43) to form a cycle. The sandblasting box (40) is connected to the cleaning outlet assembly (3), and the cleaning outlet assembly (3) comprises an outlet box (30), and a cleaning pipe (31) is arranged in the outlet box (30); Wherein, the cleaning tubes (31) are provided in multiple groups and are rotatable, and a plurality of injection ports are provided on one side of the cleaning tubes (31). The cleaning tubes (31) are used to clean the sandblasting pellets (6) attached to the surface of the aluminum alloy plate. Among them, the cleaning pipes (31) have at least one group for air blowing to remove the sandblasting pills (6) and one group for water washing to clean the residual acid liquid.

3. The aluminum alloy surface shot peening metal coating equipment according to claim 2, characterized in that: The cleaning component (12) is a plasma nozzle.

4. The aluminum alloy surface shot peening metal coating equipment according to claim 3, characterized in that: The sandblasting shot (6) comprises an outer coating layer (61) and an inner metal core (62) disposed inside the outer coating layer (61); the outer coating layer (61) is made of rubber material, and a plurality of accommodating grooves (60) are evenly distributed on the surface of the outer coating layer (61).

5. The aluminum alloy surface shot peening metal coating equipment according to claim 4, characterized in that: In the liquid storage tank (23), the first pickling is oxalic acid, the second pickling is sulfuric acid, and the oxalic acid concentration is 15±3 g / L, and the sulfuric acid concentration is 80±10 g / L; Among them, the pickling temperature is controlled at 25℃-30℃; The aluminum alloy plate is the anode, the conduit II on the buffer plate I (27) is the cathode, and the voltage is 16V-18V.

Images